节点文献
Simulation on Dynamic Characteristic of Negative Resistance Arc in Pulsed TIG Welding
【Abstract】 A mathematical model is established on the basis of the physical characteristic of the negative resistance arc when a low current of 0—50 A is applied in pulsed TIG welding. The simulation model converted from the mathematical model is run in MATLAB environment, and the discussion is focused on the way the peak current ranging from 29 A to 50 A and the time constant of arc in the span of 0.003—0.006 s influence the simulating results and the dynamic characteristic. The simulating data are close to that of welding experiments and correspond to the theoretical conclusion.
【关键词】 pulsed TIG welding;
negative resistance arc;
mathematical model;
dynamic characteristic;
computer simulation;
【Key words】 pulsed TIG welding; negative resistance arc; mathematical model; dynamic characteristic; computer simulation;
【Key words】 pulsed TIG welding; negative resistance arc; mathematical model; dynamic characteristic; computer simulation;
【基金】 National Natural Science Foundation of China (No 59975068) Natural Science Foundation of Tianjin (No993602911)
- 【文献出处】 Transactions of Tianjin University ,天津大学学报(英文版) , 编辑部邮箱 ,2007年01期
- 【分类号】O347
- 【被引频次】2
- 【下载频次】50